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Why is processing a sorted array faster than processing an unsorted array?
...me strange reason, sorting the data miraculously makes the code almost six times faster:
26 Answers
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Test whether a list contains a specific value in Clojure
...e correct way to do what you're trying to do is as follows:
; most of the time this works
(some #{101} '(100 101 102))
When searching for one of a bunch of items, you can use a larger set; when searching for false / nil, you can use false? / nil? -- because (#{x} x) returns x, thus (#{nil} nil) i...
Multiline strings in VB.NET
...e you want to send some variables, which is what you need to do 99% of the time.
... <%= variable %> ...
Here's how you do it:
<SQL>
SELECT * FROM MyTable WHERE FirstName='<%= EnteredName %>'
</SQL>.Value
...
Find the day of a week
...
Look up ?strftime:
%A Full weekday name in the current locale
df$day = strftime(df$date,'%A')
share
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improve this answer
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How to append a newline to StringBuilder
... @tuscland - Why not just use System.lineSeparator() all the time? Why is '\n' a better option as default?
– RyanfaeScotland
Jun 3 '15 at 15:46
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What is the “Execute Around” idiom?
...nversion of Control (Dependency Injection) that you can vary ad hoc, every time you call the method.
But it could also be interpreted as an example of Control Coupling (telling a method what to do by its argument, literally in this case).
...
What is a raw type and why shouldn't we use it?
...erics were introduced. That is, the following is entirely legal at compile-time.
List names = new ArrayList(); // warning: raw type!
names.add("John");
names.add("Mary");
names.add(Boolean.FALSE); // not a compilation error!
The above code runs just fine, but suppose you also have the following:
fo...
VS 2012: Scroll Solution Explorer to current file
...Alt+L for navigating to the solution explorer
Track current file all the time:
Visual Studio >= 2012:
If you like to track your current file in the solution explorer all the time, you can use the solution from the accepted answer (Tools->Options->Projects and Solutions->Track Active...
What is the difference between varchar and nvarchar?
...s. With cheap disk and memory nowadays, there is really no reason to waste time mucking around with code pages anymore.
All modern operating systems and development platforms use Unicode internally. By using nvarchar rather than varchar, you can avoid doing encoding conversions every time you read ...
How do you loop in a Windows batch file?
...
If you want to do something x times, you can do this:
Example (x = 200):
FOR /L %%A IN (1,1,200) DO (
ECHO %%A
)
1,1,200 means:
Start = 1
Increment per step = 1
End = 200
...